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ATS Automatic Transfer Switch 100A–630A – 3P/4P Generator Backup
Description:
The MINGTUO ATS (Automatic Transfer Switch) ensures uninterrupted power by intelligently and automatically transferring electrical loads between primary and backup power sources. Designed with rugged mechanical construction and an advanced control system, it delivers seamless switching for critical operations across industrial, commercial, and public infrastructures.
Applications:
Generator backup systems for commercial and industrial sites
Data centers and mission-critical server rooms
Hospital emergency power networks
Industrial production lines requiring uninterrupted operation
Commercial buildings, hotels, and convention centers
Telecommunications and broadcasting facilities
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RM22UB34 Single-Phase Voltage Monitoring Relay
Core Functions: Monitors the voltage of a single-phase 220V circuit; detects over-voltage, under-voltage, and power loss conditions; and independently monitors the power supply to a single-phase load.
Terminal Definitions
A1/A2: Connection points for the single-phase power supply to be monitored;
L1/L2: Power supply circuit;
Output contacts: Linked to alarm or shutdown functions.
Practical Applications
1. Monitors 220V equipment such as heating elements, single-phase variable frequency drives (VFDs), lighting systems, and small oil pumps;
2. Disconnects the load when grid voltage is excessively low or high, preventing damage to controllers and heating elements;
3. Can be used for delayed equipment startup upon power-up and for power-loss alarms.
RM22TR33 Multifunction 3-Phase Voltage Monitoring Relay
Core Functions: Comprehensive three-phase monitoring—including phase sequence, phase loss, over-voltage, under-voltage, and three-phase voltage imbalance—with adjustable time-delay functionality.
Terminal Definitions
L1/L2/L3: Three-phase 380V input;
A1/A2: Auxiliary power supply;
16/18: Fault alarm contacts.
Practical Applications
1. Includes all phase sequence and phase loss protection features found in the RM22TG20;
2. Provides time-delayed shutdown protection in cases of high grid voltage (over-voltage), low grid voltage (under-voltage), or excessive voltage difference between phases;
3. Suitable for precision equipment—such as elevators, injection molding machines, central air conditioning systems, and large air compressors—where high voltage stability is required.
